RU2012144052A - METHOD FOR REMOVING THERMALLY STABLE SALTS FROM ACID ABSORBERS - Google Patents
METHOD FOR REMOVING THERMALLY STABLE SALTS FROM ACID ABSORBERS Download PDFInfo
- Publication number
- RU2012144052A RU2012144052A RU2012144052/05A RU2012144052A RU2012144052A RU 2012144052 A RU2012144052 A RU 2012144052A RU 2012144052/05 A RU2012144052/05 A RU 2012144052/05A RU 2012144052 A RU2012144052 A RU 2012144052A RU 2012144052 A RU2012144052 A RU 2012144052A
- Authority
- RU
- Russia
- Prior art keywords
- acid gas
- range
- gas absorber
- regenerated
- mixture
- Prior art date
Links
- 239000002253 acid Substances 0.000 title claims abstract 30
- 238000000034 method Methods 0.000 title claims abstract 22
- 239000006096 absorbing agent Substances 0.000 title claims abstract 19
- 150000003839 salts Chemical class 0.000 title claims abstract 3
- 239000002516 radical scavenger Substances 0.000 claims abstract 12
- 239000000203 mixture Substances 0.000 claims abstract 10
- 150000001412 amines Chemical class 0.000 claims abstract 9
- 239000002699 waste material Substances 0.000 claims abstract 7
- 238000000926 separation method Methods 0.000 claims abstract 4
- 239000000243 solution Substances 0.000 claims abstract 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract 3
- 239000012670 alkaline solution Substances 0.000 claims abstract 3
- VARKIGWTYBUWNT-UHFFFAOYSA-N 2-[4-(2-hydroxyethyl)piperazin-1-yl]ethanol Chemical compound OCCN1CCN(CCO)CC1 VARKIGWTYBUWNT-UHFFFAOYSA-N 0.000 claims abstract 2
- WFCSWCVEJLETKA-UHFFFAOYSA-N 2-piperazin-1-ylethanol Chemical compound OCCN1CCNCC1 WFCSWCVEJLETKA-UHFFFAOYSA-N 0.000 claims abstract 2
- 238000001816 cooling Methods 0.000 claims abstract 2
- 150000004985 diamines Chemical class 0.000 claims abstract 2
- 238000005191 phase separation Methods 0.000 claims abstract 2
- 230000001172 regenerating effect Effects 0.000 claims abstract 2
- 239000002904 solvent Substances 0.000 claims abstract 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims 2
- 125000002091 cationic group Chemical group 0.000 claims 1
- 238000001914 filtration Methods 0.000 claims 1
- 229930195733 hydrocarbon Natural products 0.000 claims 1
- 150000002430 hydrocarbons Chemical class 0.000 claims 1
- 238000005342 ion exchange Methods 0.000 claims 1
- 150000002736 metal compounds Chemical class 0.000 claims 1
- 229910000000 metal hydroxide Inorganic materials 0.000 claims 1
- 150000004692 metal hydroxides Chemical class 0.000 claims 1
- 238000001471 micro-filtration Methods 0.000 claims 1
- 229910021653 sulphate ion Inorganic materials 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1425—Regeneration of liquid absorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1493—Selection of liquid materials for use as absorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
- B01J39/08—Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/21—Organic compounds not provided for in groups B01D2251/206 or B01D2251/208
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/30—Alkali metal compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/30—Alkali metal compounds
- B01D2251/304—Alkali metal compounds of sodium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/302—Sulfur oxides
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
1. Способ регенерации поглотителя кислотных газов, содержащего амин и термически стабильные соли, посредством разделения фаз, включающийa) смешивание поглотителя кислотных газов со щелочным раствором, с образованием смеси со значением рН, превышающим точку эквивалентности рН амина;b) охлаждение смеси до температуры ниже 50°С;c) разделение смеси на регенерированный поглотитель кислотных газов и поток отходов;d) сбор регенерированного поглотителя кислотных газов, выделенного из потока отходов.2. Способ по п.1, в котором стадию с) осуществляют посредством оставления смеси в покое в течение, по меньшей мере, 30 минут, предпочтительно, в пределах от 1 часа до 10 часов, более предпочтительно, от 1 часа до 3 часов, чтобы сделать возможным разделение регенерированного поглотителя кислотного газа и потока отходов.3. Способ по п.1 или 2, где поглотитель кислотных газов представляет собой водный аминовый растворитель, предпочтительно, раствор диамина, более предпочтительно, раствор, содержащий N-(2-гидроксиэтил)пиперазин или N,N'-бис-(гидроксиэтил)пиперазин или их сочетание.4. Способ по п.1 или 2, в котором поглотитель кислотного газа содержит в пределах от 15 до 40 мас.%, предпочтительно, от 20 до 35 мас.%, более предпочтительно, от 23 до 27 мас.% амина по отношению к общей массе поглотителя кислотного газа.5. Способ по п.1 или 2, в котором поглотитель кислотного газа содержит в пределах от 10 до 25 мас.%, более предпочтительно в пределах от 10 до 20 мас.%, еще более предпочтительно, в пределах от 13 до 16 мас.% сульфата по отношению к общей массе поглотителя кислотного газа.6. Способ по п.4, в котором поглотитель кислотного газа содержит в пределах от 13 до 16 мас.% �1. A method of regenerating an acid gas absorber containing an amine and thermally stable salts by phase separation, which includes: a) mixing the acid gas absorber with an alkaline solution to form a mixture with a pH above the equivalence point of the amine pH; b) cooling the mixture to a temperature below 50 ° C; c) separation of the mixture into a regenerated acid gas absorber and a waste stream; d) collection of a regenerated acid gas absorber extracted from a waste stream. 2. The method according to claim 1, wherein step c) is carried out by leaving the mixture at rest for at least 30 minutes, preferably in the range of 1 hour to 10 hours, more preferably 1 hour to 3 hours, to make separation of the regenerated acid gas scavenger and waste stream is possible. 3. The method according to claim 1 or 2, wherein the acid gas scavenger is an aqueous amine solvent, preferably a diamine solution, more preferably a solution containing N- (2-hydroxyethyl) piperazine or N, N'-bis- (hydroxyethyl) piperazine or their combination. 4. The method according to claim 1 or 2, in which the acid gas absorber contains from 15 to 40 wt.%, Preferably from 20 to 35 wt.%, More preferably from 23 to 27 wt.% Amine relative to the total weight acid gas scavenger. 5. The method according to claim 1 or 2, in which the acid gas absorber contains in the range from 10 to 25 wt.%, More preferably in the range from 10 to 20 wt.%, Even more preferably in the range from 13 to 16 wt.% Sulfate in relation to the total mass of the acid gas absorber. 6. The method according to claim 4, in which the acid gas absorber contains from 13 to 16 wt.% �
Claims (15)
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US31468910P | 2010-03-17 | 2010-03-17 | |
| US61/314,689 | 2010-03-17 | ||
| EP10156848 | 2010-03-18 | ||
| EP10156848.3 | 2010-03-18 | ||
| PCT/EP2011/054051 WO2011113897A1 (en) | 2010-03-17 | 2011-03-17 | Process for the removal of heat stable salts from acid gas absorbents |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2012144052A true RU2012144052A (en) | 2014-04-27 |
| RU2562262C2 RU2562262C2 (en) | 2015-09-10 |
Family
ID=42371386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2012144052/05A RU2562262C2 (en) | 2010-03-17 | 2011-03-17 | Method for removing thermally stable salts of acid gas absorbers |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US10118123B2 (en) |
| EP (1) | EP2547424A1 (en) |
| CN (1) | CN102858430B (en) |
| CA (1) | CA2792698C (en) |
| CL (1) | CL2012002564A1 (en) |
| RU (1) | RU2562262C2 (en) |
| WO (1) | WO2011113897A1 (en) |
| ZA (1) | ZA201206776B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140260979A1 (en) * | 2013-03-14 | 2014-09-18 | Cansolv Technologies Inc. | Processes for the rejuvenation of an amine acid gas absorbent used in an acid gas recovery unit |
| RU2674963C2 (en) * | 2013-11-07 | 2018-12-13 | Кэнсолв Текнолоджиз Инк. | Process for capturing sulphur dioxide from gas stream |
| CN103979716A (en) * | 2014-05-22 | 2014-08-13 | 西安热工研究院有限公司 | System and method for purification and reuse of amine liquid in flue gas CO2 capture system of coal-fired power station |
| CN105366766B (en) * | 2014-08-25 | 2018-02-16 | 中石化洛阳工程有限公司 | A kind of resin bed heat stable salt removal methods |
| EP4549384A3 (en) * | 2017-05-22 | 2025-10-08 | Commonwealth Scientific and Industrial Research Organisation | Process and system for capture of carbon dioxide |
| CN115991528A (en) * | 2023-03-22 | 2023-04-21 | 河北精致科技有限公司 | Method for purifying flue gas absorbent |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1118687A (en) * | 1967-02-10 | 1968-07-03 | Shell Int Research | Process for the recovery of amine from amine degradation products |
| GB1203874A (en) * | 1968-03-14 | 1970-09-03 | Ucb Union Chemische Bedrijven | Process for the regeneration of alkanolamines |
| US3658462A (en) | 1970-03-05 | 1972-04-25 | Shell Oil Co | Liquid-gas absorption process |
| US4122149A (en) | 1977-03-25 | 1978-10-24 | Union Carbide Corporation | Process for removing SO2 from effluent gases and for removing heat stable salts from systems in which they accumulate |
| US4113849A (en) | 1977-03-25 | 1978-09-12 | Union Carbide Corporation | Recovering sulfur from gas streams containing hydrogen sulfide |
| US5045291A (en) | 1987-07-02 | 1991-09-03 | Conoco Inc. | Reactivation of spent alkanolamine |
| US4970344A (en) | 1987-07-02 | 1990-11-13 | Conoco Inc. | Reactivation of spent alkanolamine |
| AU612238B2 (en) * | 1988-01-29 | 1991-07-04 | Dow Chemical Company, The | Process for the recovery of alkanolamines from their heat-stable salts formed in alkanolamine sorbent solutions |
| JP3348109B2 (en) | 1992-01-02 | 2002-11-20 | コノコ・インコーポレーテッド | Monitor and control system for selective regeneration of alkanolamines from cation exchange resins with sodium hydroxide |
| US5292407A (en) | 1992-12-18 | 1994-03-08 | Union Carbide Chemicals & Plastics Technology Corporation | Process for converting heat stable amine salts to heat regenerable amine salts |
| EP0810904B1 (en) | 1995-02-24 | 1998-09-02 | MPR Services, Inc. | Amine heat stable salt removal from type ii anion exchange resin |
| JP3349346B2 (en) * | 1996-05-28 | 2002-11-25 | 三菱重工業株式会社 | Desulfurization and decarboxylation process |
| US5733516A (en) * | 1996-09-09 | 1998-03-31 | Gas Research Institute | Process for removal of hydrogen sulfide from a gas stream |
| US5912387A (en) * | 1997-01-28 | 1999-06-15 | The Dow Chemical Company | Amine heat stable salt neutralization having reduced solids |
| US6245128B1 (en) | 1999-06-15 | 2001-06-12 | Mobil Oil Corporation | Process for the reclamation of spent alkanolamine solution |
| US7056482B2 (en) * | 2003-06-12 | 2006-06-06 | Cansolv Technologies Inc. | Method for recovery of CO2 from gas streams |
| US7323600B1 (en) * | 2006-08-08 | 2008-01-29 | Mpr Services, Inc. | Process for improving the conversion of oxazolidones to alkanolamines |
-
2011
- 2011-03-17 WO PCT/EP2011/054051 patent/WO2011113897A1/en not_active Ceased
- 2011-03-17 RU RU2012144052/05A patent/RU2562262C2/en not_active IP Right Cessation
- 2011-03-17 CN CN201180020399.4A patent/CN102858430B/en not_active Expired - Fee Related
- 2011-03-17 US US13/634,569 patent/US10118123B2/en not_active Expired - Fee Related
- 2011-03-17 EP EP11708495A patent/EP2547424A1/en not_active Withdrawn
- 2011-03-17 CA CA2792698A patent/CA2792698C/en not_active Expired - Fee Related
-
2012
- 2012-09-11 ZA ZA2012/06776A patent/ZA201206776B/en unknown
- 2012-09-14 CL CL2012002564A patent/CL2012002564A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP2547424A1 (en) | 2013-01-23 |
| RU2562262C2 (en) | 2015-09-10 |
| WO2011113897A1 (en) | 2011-09-22 |
| CL2012002564A1 (en) | 2013-01-11 |
| CA2792698C (en) | 2018-09-04 |
| US10118123B2 (en) | 2018-11-06 |
| CA2792698A1 (en) | 2011-09-22 |
| ZA201206776B (en) | 2013-05-29 |
| US20130193375A1 (en) | 2013-08-01 |
| CN102858430A (en) | 2013-01-02 |
| CN102858430B (en) | 2015-02-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PC41 | Official registration of the transfer of exclusive right |
Effective date: 20161229 |
|
| MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20200318 |